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Air Conditioning & Heating Repair Temecula Valley

Are you having air conditioning problems? Looking for a reliable, licensed heating and air specialist who offers affordable pricing? Third Generation is family-owned and operated in Temecula with three generations of experience in air conditioning and heating. We provide residential and commercial air conditioning repair, installation, and maintenance service to all Temecula, Murrieta, Lake Elsinore, Menifee, Sun City, Canyon Lake, Wildomar, Hemet, and Perris with no overtime or weekend charges. Our goal is to provide the highest quality service at an affordable price. Our highly experienced and qualified staff specializes in customer service. We offer personal service at the highest level. All service technicians are fully qualified and trained to repair your problems. All service trucks are fully stocked and radio dispatched for rapid response. Our fleet of service vehicles offers you reliable, same-day, and 24-hour emergency call service. Our fast response time and our affordable pricing combined with three generations of experience make us the best air conditioning and heating company to call in Temecula. We have excellent references both from residential and commercial clients that we have serviced in the past.

Emergency Services
for Residential and Commercial locations all around Temecula Valley.

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We understand that it can be frustrating if your home air conditioning breaks down, but you can rely on us to get it back up and running fast. Just call one of our friendly service coordinators to schedule a time that is convenient to you and if it is urgent or after hours we offer 24/7 service to all Temecula and surrounding areas with no overtime charges. We also know that you have better things to do than wait around for service, so our technician will arrive when promised.

Residental Services


We’ll keep your indoor environment at the perfect temperature. Commercial AC repairs require experience and training whether it is your office, factory or retail location we have the experience and the technical excellence in designing and installing systems to meet your unique requirements. We know that an HVAC problem can really disturb your business that is why we offer 24/7 service with no overtime charges.

Commercial Services


Like a car, an air conditioner that is regularly maintained will run better and last longer. Regular maintenance gives you the confidence of knowing that your air conditioner can be relied upon, that it will work at its optimum capacity at those times when you need it most. Our preventive maintenance program offers various benefits.

Maintenance Services

Dryer Vent Cleaning

Third Generation recommends that you get your dryer vent cleaned twice a year depending upon usage. A well-maintained dryer vent could prevent not only fires but also enhance the efficiency, of a dryer. We provide services for Dryer Vent Cleaning in Temecula Valley that can help reduce your energy costs.

Dryer Vent Cleaning Services

Our Recent Projects

A/C Unit Replacement on Office Trailer in Perris, California


Dryer Vent Replacement Murrieta, California


Residential Rooftop Package Unit Replacement Lake Elsinore, California


As Temecula’s Premiere Eco-Friendly Heating and Air Experts

We Service, Install and Repair American Standard, Trane, Carrier, Goodman, Coleman, Rheem, Lennox, Payne, Comfort Maker, Amana, and more…

American Standard

Our Recent Yelp Reviews


Natalie L.Natalie L.

We love third generation heating and air conditioning!
We have used them multiple times and highly recommend them. They are reliable, professional and get...

K W.K W.

We had an A/C condensation plate that leaked through our ceiling and all over the house. We tried to go through another company our home warranty company...


Emergency Services
for Residential and Commercial locations all around Temecula Valley.

(951) 304-1333

Lower Your Energy Cost and Help Protect The Environment

energy-starWhat is ENERGY STAR?

ENERGY STAR is the trusted, government-backed symbol for energy efficiency helping us all save money and protect the environment through energy-efficient products and practices. Making your home more energy efficient with ENERGY STAR can help to reduce high energy bills, improve comfort and help to protect the environment. click here to find energy-star-qualified products.